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Sungold Power 10k Single Phase Grounding Question

Grimey

New Member
Joined
Sep 9, 2024
Messages
8
Location
Baltimore Maryland
I am using a Sungold Power 10k split phase charger/inverter in Single Phase mode and have a question regarding the grounding. I wired up a
single phase Jindouzi outlet box and believe it is wired correctly; however, I am getting "hot/neutral reverse" on my three prong outlet tester. I was wondering if I needed to ground the inverter, and can I connect to the ground wire that comes out of my 100amp electrical panel for my house to a 10' grounding rod in the ground? I am attaching a diagram of what I have. This is indicated by the green line.

sun-gold-grounding-diagram.jpg
 
You may only be bonded to ground at one location, you main service disconnect is usually it. You should have a ground wire run to the inverter, but not bond the inverter's neutral to ground. There should be no need for another ground rod. When you bond the inverter to the panel's ground, you are successfully bonded to ground. The primary disconnect may be part of your first panel, so it is where the only bond is at, it should then have four wires out.

I do not understand the 2nd red wire spliced in to get 4 wires. If you wanted 240VAC you should be set to Split Phase, not single phase. Single phase is 3-wire, Hot (ungrounded conductor), neutral (grounded conductor), ground.
 
Last edited:
Thanks so much for the reply. I am eventually going to 240VAC when I put the system at my wife's cabin. Right now I am learning to run everything at my home in Baltimore, so I wanted to just run single-phase.

Thanks for the help.

Long live the Forum!!!
 
If your test plug shows hot-neutral reversed than you are not wired correctly. Grounding is a separate matter.
 
When running that inverter in single phase you have to make sure your configuration is for that. Mine were defaulted to 240v not 120v. In the case of 120v, per the instructions, a 8 awg wire to both hots (L1/L2) 50 amps per wire into some kind of combiner box, then a 3 awg white wire for the neutral (100amps), then a ground wire which i think said could be smaller. in 240v i ran all 6 awg. The external case ground can be grounded to your houses ground that goes to the earth ground. In this case, there will be 4 wires coming out the inverter, 2 reds (120v each that will be combined on the other end), 1 white for the neutral, and 1 green for the ground. The 5th wire would be a separate ground for the external of the case. I have yet to ground anything to that separately on mine. I havent had a shock yet as it appears the normal ground is already bonded to the case. Could be wrong on that as the case is painted.
 

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